发明名称 |
PROCESS FOR PRODUCING HYDROXYALKYL CELLULOSES |
摘要 |
The present invention relates to (1) a process for producing a hydroxyalkyl cellulose having an excellent water-solubility while maintaining a high reaction selectivity by adding a basic compound and an alkyleneoxide to a cellulose to conduct a reaction therebetween in which the basic compound is added in a total amount of from 0.3 to 1.5 mol per 1 mol of an anhydroglucose unit in the cellulose, and the alkyleneoxide is added in a total amount of from 1.0 to 3.0 mol per 1 mol of an anhydroglucose unit in the cellulose, the process including a step of adding the basic compound in an amount of from 50 to 95% of the total amount of the basic compound to be added during the process, and then adding the alkyleneoxide in an amount of from 30 to 80% of the total amount of the alkyleneoxide to be added during the process to react the compounds with the cellulose, thereby obtaining a reaction mixture; and a step of adding a remaining amount of the basic compound and a remaining amount of the alkyleneoxide to the reaction mixture obtained in the previous step to conduct a reaction therebetween; (2) a hydroxyalkyl cellulose produced by the process; and (3) a process for producing a cationized hydroxyalkyl cellulose using the resulting hydroxyalkyl cellulose. |
申请公布号 |
WO2014087755(A1) |
申请公布日期 |
2014.06.12 |
申请号 |
WO2013JP78749 |
申请日期 |
2013.10.17 |
申请人 |
KAO CORPORATION |
发明人 |
GOTO, HIDEKI;NAKANISHI, KOHEI;IMORI, YOICHIRO;WADA, TOMOYA |
分类号 |
C08B1/00;C08B1/08;C08B11/08 |
主分类号 |
C08B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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